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I keep getting this nearly every day. People, if the thing between the inner and outer races of the bearing is metal, it is a shield, not a seal! There is a gap between the shield and inner race (about .005") otherwise you would have metal to metal contact. Sealed front bearings have rubber, Teflon, polyamide, or other flexible seals to keep lube in and dirt out. Except for a few particular cases, the front bearing does NOT seal the front of your engine! For most two strokes
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Now that summer is here and you are out enjoying your summertime activities, make sure to drink plenty of water and know the symptoms of heatstroke!high body temperature,the absence of sweating, with hot red or flushed dry skin,rapid pulse,difficulty breathing,strange behavior,hallucinations,confusion,agitation,disorientation,seizure, and/orcoma.If you see someone with these symptons, the first thing to do is call emergency services. Then do whatever you can to cool them off, including mov
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I am sorry for the delay in getting these back in stock. They are S6902, S6903 and S16003 bearings with C3 clearance and high speed plastic retainers. They can be used in any engine but were developed specifically to address retainer failures in standard bearings.

We get a lot of requests for bearings for engines that have been out of production for a long time. Many of these engines, such as the older OS .60 and .61, use bearings specially made for them and the bearing suppliers we use do not make them. We can have them made special but the manufacturers require minimum orders for these that are usually 10,000 bearings! Needless to say, we can't afford to have 10,000 bearings made for us and have them sit on the shelf for decades!
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I get questions occasionally regarding sealed vs shielded front bearings for engines. A well designed and machined engine will run quite well with a shielded front bearing. Most modern engines come that way nowdays. Occasionally, you can get an engine that is on the extremes of manufacturing tolerances, or where the crankcase has worn due to eating a lot of dust and dirt. For these engines, the fit of the crankshaft and case just isn't close enough to actually seal the cr
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